Spamc uses a default maximum message size of 500 kB.  While this conservative
setting is a safe default, modern email is likely to exceed this value fairly
regularly.  Unless you're running in a constrained environment with limited CPU
and memory resources, you should consider specifying a larger limit at run time
either in the configuration file, /etc/spamassassin/spamc.conf, or on the spamc
command line.  Refer to the spamc(1) manual page for more details, and in
particular the CONFIGURATION FILE section and the description of the --max-size
option.

See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=951545 for background.

 -- Noah Meyerhans <noahm@debian.org>, Mon, 31 Mar 2025 16:02:46 -0400
